Mortimer, Mary,  1944- <br/><br/>
Learn Dewey Decimal Classification / 
Mary Mortimer 
 - 21st. ed. 
 - Maryland :  Scarecrow,  c 2000 
 - 145 p. 
<br/><br/><label>ISBN: </label>0810836947 (papel alcalino) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clasificacion Decimal Dewey
<br/><br/><label>LC Class. No.: </label>Z696.D7  / M67 2000